Oxyhemoglobin Dissociation

Question 1

Names for oxygen load hemoglobin

Answer 1

Combined oxygen
HgbO2
HbO2
Oxyhemoglobin

Question 2

Names for none oxygen loaded hemoglobin

Answer 2

Deoxyhemoglobin
Deoxygenated Hgb
Reduced hemoglobin
HHb

Question 3

How many heme groups are on hemoglobin

Answer 3

Four

Question 4

How many irons are on a heme molecule

Answer 4

One per

Question 5

What is the dissociation curve shape called

Answer 5

Sigmoidal shape

Question 6

90% SO2 correlates with what partial pressure

Answer 6

60mmHg

Question 7

80% SO2 correlates with what mmHg

Answer 7

50mmHg

Question 8

90% SO2 is associated with what partial pressure

Answer 8

60mmHg

Question 9

Stretch trauma

Answer 9

Excessive distention associated with PIPs secondary to increased volume

Question 10

Stress trauma

Answer 10

Force per unit area

Question 11

Strain trauma

Answer 11

Deformation of a structure compared to typical size/shape

Question 12

Shear forces lung injury/shear stress

Answer 12

Force applied at an angle

Question 13

What is the Hct of a fetus

Answer 13

55%
More RBCs than plasma

Question 14

What protein chains does a fetus have

Answer 14

2 alpha
2 gamma

Question 15

Comparatively how much 2,3-DPG does a fetus have

Answer 15

Less

Question 16

Which way is the fetal curve shifted

Answer 16

To the left

Question 17

How much easier does carbon monoxide bind to Hgb than oxygen

Answer 17

240 times

Question 18

What does carbon monoxide do to the curve

Answer 18

Shifts it the left

Severe hypoxemia with normal PO2

Question 19

Methemoglobinemia does what to the curve

Answer 19

Shifts it to the left